You need to get a hold of someone that specializes in these types of guns, they make a reproduction of this model (first link below), and that thing looks to be in excellent condition to be a mid to late 1800's gun. (second link)
Oh and it looks like you typed it wrong but it should be UTICA-NY, town & state, not trying to be a dick just pointing it out.
Dixie Gun Works muzzleloading, blackpowder and rare antique gun supplies.
So you really need to know what it is, your looking at something worth a couple hundred to maybe ten thousand+